PARTS CATALOGUE / TECHNICAL GUIDE
Cal.8T67A
8T67A
Driving system Step motor 2 pieces
Additional function
Crown
Normal position Free
operation
1st click position Date setting (clockwise)
2nd click position Time setting, Resetting the circuit
Loss/Gain (Monthly rate) Less than 15 seconds at normal temperature range
Frequency of crystal oscillator 32,768 Hz
Operational temperature range
Regulation system Nil
Gate time for rate measurement Use 10-second gate
Current consumption
Coil resistance
・4002054（Coil block A): 1.45 - 1.65KΩ for chronograph
・4002055（Coil block B): 1.65 - 1.85KΩ for time display
SR936SW (Silver oxide battery)
Battery life Approximately 3 years
・Stopwatch function up to 12 hours in 1/5 second
・Date display with quick correction.
・Energy depletion forwarding function
(The second hand moves at two-second intervals.)
・Movement: Less than 2.7μA
・Circuit block: Less than 0.7μA
Movement Size
・Outside diameter: 30.8 mm
・Casing diameter 29.0 mm
・Height： 5.1 mm
・3 Hands: Hour, Minute, and 1/5 second chronograph hand
・Small Second : Small second hand(6H), Minute chronograph hand (12H),
Hour chronograph hand(9H)
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